Windows Installer product support services are provided by a dedicated team of specialists inside the larger Microsoft support organization.

If you stump these specialists with a difficult or rare issue, they have an escalation path into the Windows product group.

[Author: Robert Flaming]This posting is provided "AS IS" with no warranties, and confers no rights. Use of included script samples are subject to the terms specified at http://www.microsoft.com/info/cpyright.htm.

I guess that many developers have a MSDN subscription. Therefore it should be mentioned that your subscription includes a number of free support incidents (the number depends on your subscription level). In addition, the microsoft.public.platformsdk.msi newsgroup is a "managed newsgroup", which means that registered MSDN subscribers are guaranteed to receive an answer within two business days. See http://msdn.microsoft.com/newsgroups/managed/ for the procedure.